A multi-dimensional detection device for thermal elongation of CNC machine tool spindle

Abstract

The invention discloses a multi-dimensional detection device for thermal elongation of a CNC machine tool spindle. The device includes a detection device, a thrust device, an indexing displacement device, a CNC machine tool spindle, and a CNC system; Orientation detection; through the non-contact displacement sensor in the detection device, the thermal elongation displacement signal of the spindle is collected and fed back to the numerical control system. With the help of the temperature compensation function in the numerical control system, the detection and compensation closed-loop control of the thermal elongation of the spindle is realized; the device of the present invention is flexible , Easy to adjust, suitable for detection and experimental measurement on different types of CNC machine tools, has a certain guiding role in the detection of spindle thermal elongation, can be used in engineering practice, teaching, scientific research and other fields, and has good practicability and economic benefits.

Description

technical field [0001] The invention relates to a multi-dimensional detection device for thermal elongation of a CNC machine tool spindle, belonging to the technical field of thermal error detection equipment. Background technique [0002] CNC machine tools occupy a major position in the manufacturing and processing industry, and machining accuracy is an important indicator to measure the performance of CNC machine tools. The biggest source of error affecting the machining accuracy of machine tools is generated by the external environment and internal heat sources. As the core component of CNC machine tools, the spindle generates more heat when it rotates at high speed, which leads to thermal elongation of the spindle. If the temperature is too high, the spindle heats up sharply, and the thermal elongation and deformation of the spindle are serious, resulting in a decrease in the accuracy of the machine tool, affecting work efficiency, and causing serious economic losses. A...

AI Technical Summary

Problems solved by technology

The largest source of error affecting the machining accuracy of machine tools is generated by the external environment and internal heat sources. As the core component of CNC machine tools, the spindle generates more heat when it rotates at high speed, which leads to thermal elongation of the spindle.

If the temperature is too high, the spindle heats up sharply, and the thermal elongation and deformation of the spindle are serious, resulting in a decrease in the accuracy of the machine tool, affecting work efficiency, and causing serious economic losses.

At present, the actual processing environment of CNC machine tools is complex, the installation of the thermal elongation detection device of the spindle is inconvenient, and the detection device is relatively simple. Adjusting the position and calibrating the sensor during the detection process increases the test time, and lacks a more intelligent and systematic mechanical structure.

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